Lock bolt



T. P. ARCHER March 10, 1925. 1,529,415

LOCK BOLT Filed July so 19 I N V EN TOR. 1%027745 1. 191036? ATTORNEY.

Patented Mar. 1c, was

UNITE s'raras ERATENT mom P. ARCHER, O]? DETROIT, MICHIGAN, ASSIGNOR TO TfiEB-N FAG- TURING COMPANY, .01? DETROIT, MICHIGAN, A. CORPORATION OF LOCK BOLT.

vApplication filed July 30, 1924: Serial No. 729,029.

To all whom it may concern: Be it known that I, THOMAS P. ARGHER, a citizen of the United States, residing at Detroit, in the county of Wayne and State I of Michigan, have invented certain new and useful Improvements in Lock Bolts, of which the following is a specification. This invention has for its object an imrovement in the structure of a sliding lock iiolt. Itis the object of the iiivention to at the cost of an ordinary coach lock bolt nfiown to a minimum and at the same time provide a latch bolt which has all. the churucteristics re arding functions and efliciency which attends those of more expensive de- In-the drawings: Fig. 1 is a view of a vertical spindle coach lock with the cover plate removed. b llFig. 2 is a perspective of the sliding latch o t. 1. Fig. 3 is a fragmentary view of the slidingklatch bolt used with the ordinary coach 0c a a i I 5 Up to a few years ago it has beencustomary in the production of locks to make a sliding bolt member in the form of a casting provided with the necessary head, pro- I jections, and curves. More recently the bolt heads and the bolt bod have been made separate and secured toget er. the bolt head can be out from rolled stoc and the body of.the bolt can be a stamping.

However, it has been found necessary to 36 form the roll back abutment as some special stampin and clamp the same to the bod of the bolt y projectin lugs, fingers or ot erwise This kind 0? construction requires somewhat ex ensive dies and a number of stamping an punching operations Oper ations of" this kind may seem simple but when figured up the cost sheets of the manufacturer involve a considerable outlay in pro-' viding the necemary roll back abutment in a stamped sliding bolt.

In this way stampings which are simply folded up to form rightangles. The rear of the for ward bolt body section is folded u to form the angle a while the short rear olt bod section is folded up to form the angle The perpendicular portions of t ese n'ienr 0f hers are lapped together and spot-welded.

This forms a suitable abutment for the crank type of roll back e used with a vertical spindle lock orthe lever type inside retractor designated f. 3. The rear angle piece of the sliding bolt I is necessary as a guide for the bolt. Here it is shown as gulded from the struck, up

' lugs g of the front plate h of the look.

What I claim is: a Y

1. 'A bolt comprising a body portion made of two pieces having their meeting portions turned up intoan le plates which are socured together-to ormtheroll back abutment. y r 3! 2. A sliding bolt having a body portion made of two portions that are aligned but which-are. turned up into right angular plates where the meet and are welded to-. getherto term t 1e roll back abutment.

3. Al sliding bolt, having a stamped metal,

body portionhaving'the rear end-turned up perpendicularly, a second rear portion 'formed up into'ah angle and lapped against the turned up portion of the first-mentioned body member and secured'thereto to form the roll back abutment.

In testimony whereof I have ailixedmy signature,

. THOMAS P. ARCHER,

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